Java tutorial
/******************************************************************************* * Copyright 2002-2016 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *******************************************************************************/ package com.github.lothar.security.acl.jpa.spec; import javax.persistence.criteria.CriteriaBuilder; import javax.persistence.criteria.CriteriaQuery; import javax.persistence.criteria.Predicate; import javax.persistence.criteria.Root; import org.springframework.data.jpa.domain.Specification; public class DenyAllSpecification<T> implements Specification<T> { @Override public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder cb) { return cb.disjunction(); } @Override public String toString() { return getClass().getSimpleName(); } }